Although AMD has only revealed its Ryzen 7040 HS-series CPUs for laptops and did not talk about the U-series, the Ryzen 5 7640U Phoenix 6-core APU has now been spotted in the Geekbench database. The same CPU has already appeared earlier when AMD was talking about the new naming scheme for its Ryzen 7000 series.
Based on AMD's Zen 4 core architecture and built on a 4 nm manufacturing process, the Ryzen 5 7640U features 6-cores and 12-threads, 6 MB of L2 cache, and 16 MB of L3 cache. According to the Geekbench listing, it works at 3.5 GHz base and 4.9 GHz boost clocks. It also comes with Radeon RX 760M, which is an RDNA 3 based iGPU with 8 Compute Units (CUs), which should leave it with 512 Stream Processors. As detailed earlier, the TDP is set at 15 W to 28 W, and it aims at "Premium Ultrathin" market. Judging from these listed specifications, the Ryzen 7640U appears to be the same as the Ryzen 5 7640HS, probably just with lower clocks across the board due to the lower TDP.